Laundry starch-powder.



JAMES BENOID, OF LONDON, ENGLAWD.

LAUNDRY STARCH-POWDER.

Specification of Letters Patent.

Patented Oct. 1, 1907.

Application filed June 17,1907. fierial No. 379,473.

10 purposes, giving great smoothness in ironing.

The improved powder is produced according to this invention bycompounding certain substances in proportions suited to the water withwhich the laundry starch or blue is to be made. These substances are:-

15 tungstate of soda; Epsom salts, carbonate of magnesia,

borax, hyposulfite of soda, bicarbonate of soda, and French chalk. Thelimiting proportions in which these substances are to be used aresubstantially as follows:

Tungstate of soda from 1 to 4 volumes. Epsom salts 1 to 4 Carbonate ofmagnesia 3 to 10 Borax 5 to 20 Hyposulfite of soda 5 to 15 Bicarbonateof soda. 2 to 8 French chalk 1 to 7 The most suitable proportions foruse with London water are as follows:

Tungstate of soda 2 volumes.

Epsom salts 2 Carbonate of magnesia 5 Borax 10 Hyposulfite of soda 10Bicarbonate of soda 5 French chalk 3 The above mentioned substances areto be measured and used in the state of fine powder, and mixedintimately together in the dry state. Sufiicient ultramarine blue orother coloring matter may be added to give the desired tint.

When used formaking laundry starch the improved powder is to be mixedwith water with from 35 to 65 times its volume of maize starch or ricestarch and used in the ordinary manner. When intended for cold or rawstarching, luke-warm water must be used for making the starch solution.

The improved powder, starch, blue or the like, produced according tothis invention acts as a disiniectant and an antiseptic, and alsorenders textile articles treated therewith non-inflammable.

What I claim and desire to secure by Letters Patent of the United Statesis:

1. An improved laundry starch powder composed of 2 volumes of tungstateof soda, 2 volumes of epsom salts, 5 volumes of carbonate of magnesia,10 volumes of borax, 10 volumes of hyposulfite of soda, 5 volumes ofhicarbo nate of soda, and from 1 to 7 volumes of French chalk, mixedtogether.

2. An improved laundry starch powder having as a part thereof tungstateof soda, epsom salts, carbonate of magnesia, borax, hyposulfite of soda,and bicarbonate of soda.

3. An improved laundry starch powder consisting of tungstate of soda,epsom salts, carbonate of magnesia, borax, hyposulfite of soda,bicarbonate of soda, and French chalk.

In testimony whereof I have hereunto set my hand in presence of twosubscribing Witnesses.

JAMES BENOID.

Witnesses PERCY PHILLIPPS, L. A. SUTTON.

